<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入Vue -->
    <script type="text/javascript" src="../js/vue.js"></script>
</head>

<body>
    <div id="root">
        姓：<input type="text" v-model="firstName"><br /><br />
        名：<input type="text" v-model="lastName"><br /><br />
        全名:<span>{{firstName+'-'+lastName}}</span><br /><br />
        全名:<span>{{firstName}}-{{lastName}}</span><br /><br />
        <!-- 可能会使表达式变复杂 -->
        全名:<span>{{firstName.slice(0,3)}}-{{lastName}}</span><br /><br />
    </div>
</body>
<script type="text/javascript">
    Vue.config.productionTip = false; //阻止vue在启动时产生产提示
    new Vue({
        el: '#root',
        data: {
            firstName: '张',
            lastName: '三'
        }
    })
</script>

</html>